摘要
振冲碎石桩可通过对软弱地基进行置换及挤密形成复合地基,以提高地基变形模量和承载力,改善地基不均一性,减少不均匀沉降,并有效防止地基地震液化。作为一种较成熟的地基处理方法,该方法已得到广泛应用,但一般处理范围较小且处理深度不大。通过使用大功率机械设备并采取相应工程措施,在复杂工程地质条件下,可以应用振冲碎石桩对地基进行大面积、大深度处理,并有效解决地基砂土液化问题、承载力问题及抗剪强度问题。
The vibro-replacement stone pile can form composite foundation by replacing and squeezing the soft foundation. It can increase the soil deformation modulus reduce uneven settlement of foundation, and effectively and bearing capacity, improve the soil inhomogenity, prevent earthquake liquefaction of foundation. Although this method has been widely used, it is generally applied in small range and shallow depth. By using high-power equipment and taking corresponding engineering measures, foundation treatment can be carried out in large range and great depth with vibro-replacement stone effectively under complex condition of engineering geology. The problems of sand liquefaction, bearing capacity and shear strength of foundation can be solved effectively.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2013年第A01期2968-2976,共9页
Chinese Journal of Rock Mechanics and Engineering
关键词
桩基础
振冲碎石桩
复合地基
壤土
细砂
液化
承载力
抗剪强度
pile foundations
vibro-replacement stone pile
composite foundation
loam
fine sand
liquefaction
bearing capacity
shear strength
作者简介
李进元（1969—），男，硕士，1993年毕业于成都理工大学地质工程专业，现任高级工程师，主要从事地质工程和岩土工程勘察方面的研究工作。E—mail：ljy690316@126.com
